Function add

add(out: mat2, a: ReadonlyMat2, b: ReadonlyMat2): mat2
Adds two mat2's
Parameters
- out: mat2
  the receiving matrix
- a: ReadonlyMat2
  the first operand
- b: ReadonlyMat2
  the second operand
Returns mat2
out
- Defined in node_modules/gl-matrix/index.d.ts:290